Surgery – Truss – Pad
Patent
1980-12-02
1983-07-12
Swisher, S. Clement
Surgery
Truss
Pad
73 614, 128764, G01N 3348
Patent
active
043924972
ABSTRACT:
Erythrocyte Sedimentation Rate is determined by collecting a predetermined quantity of venous blood directly within a sealed evacuated ESR specimen tube which may contain a specific quantity of an anticoagulant, agitating the sealed specimen tube to mix thoroughly the anticoagulant with the blood, supporting the sealed specimen tube in a precise axially vertical position, and measuring the distance from the bottom of the surface meniscus to the top of the column of red cells at a predetermined time after the sealed specimen tube has been vertically positioned. The ESR specimen tube has a diametrically enlarged portion at one end fitted with a penetrable elastomeric sealing stopper and may be graduated along its length.
REFERENCES:
patent: 3626762 (1971-12-01), Gilford
patent: 3734079 (1973-05-01), Weber
patent: 3890203 (1975-06-01), Mehl
patent: 4278437 (1981-07-01), Hagger
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